Quarterly report pursuant to Section 13 or 15(d)

Investments in Affiliates Accounted for Using the Equity Method - (Investment in Liberty Broadband) (Details)

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Investments in Affiliates Accounted for Using the Equity Method - (Investment in Liberty Broadband) (Details)
Mar. 31, 2020
Liberty Broadband  
Schedule of Equity Method Investments [Line Items]  
Percentage ownership 23.50%